kevgathuku/multiple_rails_versions.md

Created May 3, 2026 20:20

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Managing Multiple Rails Versions in Development

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You can have multiple Rails versions installed at the same time.

To install the rails version you need:

gem install rails --version=5.2.8

How to specify the rails version to use

rails _5.2.8_ new old_school_rails

And inside the project, you will have the correct rails version

cd old_school_rails
bundle exec rails --version
Rails 5.2.8.1

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